Dante-enabled Product Catalog

Features： 1. The frameless design of the mesh cover makes it fit the wall and ceiling better; 2. The network cable realizes signal transmission and power supply; 3. Automatically assign IP address through router DHCP; 4. Each receiving channel can be controlled independently, and can be applied to any location in the local area network 5. It has high efficiency and high sound energy output, excellent sound quality, perfect protection function and good electromagnetic compatibility characteristics. 6. The built-in DSP network active speaker can remotely control the EQ and pressure limit of the active speaker on the PC side. 7. It has perfect protection functions (short circuit protection, over current protection, over and under protection, DC protection, power limit, temperature limit, long-term output power limit, clipping limiter). 8. The speaker uses Dante digital audio interface and PoE network power supply to drive the power amplifier module, and only one network cable is needed to realize the simultaneous supply of audio signal and power.

• Exquisite and minimalist structure design, highlighting the modern atmosphere, accord with ergonomics; • Special electret capacitive dual microphone core design, clear and bright sound quality, high sensitivity; • Equipped with a 2-inch high-definition true color screen, which can display the battery level of the microphone, the signal strength, the working status of the microphone, the grouping and ID number of the channel where the microphone is located. Use wireless radio frequency technology to transmit audio signals and control management signals; • With the camera tracking host, after using the computer preset, the camera can be automatically tracked; • Original microphone directivity variable technology, the user can adjust the microphone directivity according to different environments, locations, meeting methods, and the needs of the speaker, so as to achieve an optimal pickup effect. It supports 5 modes: omnidirectional, Cardioid directivity, super-cardioid directivity, sharp heart directivity, figure 8 directivity, etc.; • The chairman has priority button function and chairman priority mode; •• Anti-interference from mobile phone microphone core, stable connection, durable and reliable; Ultra-low power consumption circuit design, built-in large-capacity lithium battery, can be charged through the charging box; Cooperate with the host to realize network audio transmission and realize audio signal interconnection and intercommunication; • The conference unit has a unique serial number, and the conference system can automatically assign an ID to the conference unit.

The network audio processing center is a network audio processor with 8 inputs (4 analog and 4 digital) and 8 outputs (4 analog and 4 digital), using the industry-leading ADI DSP SHARC21489 chip, The highest operating frequency can reach 450MHz. The input and output modules of DSP can be customized according to the actual situation. At the same time, it has independent AFC, AEC, ANS, AGC, gain sharing automatic mixing, threshold automatic mixing and other processing modules to meet the needs of audio processors and transmission in various places. Such as meeting rooms, multi-function halls, conference center auditoriums, administrative centers, etc.

1: It is an efficient vertical line array system suitable for high-quality sound reinforcement places such as high-end multifunctional conference halls, small and medium-sized theaters and theaters. The high frequency part adopts the unit module of PET patented acoustic lens conversion technology, which does not have the typical polar convex angle (beam control) effect of traditional horn and woofer when used together. The precise design makes each frequency band perfectly match, at any frequency The overall wavefront coherence is ideally matched, so that the sound of the same sound quality is from near to far in the entire sound field. 2: BL-205 provides a precise coverage angle, which can be composed of multiple modes of systems to meet the needs of sound reinforcement in different places; the horizontal coverage angle is 90°, and the vertical coverage angle is 0°-10°, for the sound reinforcement system designer Provides a precise multi-purpose installation system. Its balanced integrated suspension system makes installation quick and easy and labor-saving. Unit configuration: 2 x 5 inches mid-bass +1 x 1.44 inches strong magnetic plane wave generator 3: L-205 speaker features: the cabinet structure uses high-quality 15 cm plywood, acoustic simulation calculation combined with speaker characteristics to form a closed sound system, its advantage is that the scientific use of acoustics and aerodynamics makes the entire speaker controllable Performance, sound pressure level, and horn service life have been greatly improved, achieving high sound pressure for small horns, and setting effective and complete protection devices in the speaker system, so that the speaker group will not burn out under relatively high sound pressure for a long time. 4: Applicable venues: small stadiums, small performance systems, theaters, concert halls, performing arts centers, conference centers

Features： 1. PoE power supply; 2. Soft key-type user switch to avoid mechanical sound when switching the microphone; 3. The entire expandable Dante system has 512 two-way audio channels; 4. Use a network cable to connect to the switch; 5. There are a variety of switch modes to choose from, a variety of gains are available, and a low-cut switch; 6. Equipped with a 3-pin XLRF canon female socket, suitable for quick installation of any XLRM canon male output gooseneck microphone; The sturdy casing cast by die casting and the non-slip silicon foam at the bottom of the microphone holder can reduce the impact of desktop vibration on the microphone.

Features： 1. The wireless conference system eliminates cumbersome wiring, is quick and easy to install, and is simple to operate. It is especially suitable for use in scenarios such as project transformation, mobile conferences, temporary equipment increase, and wiring failure. The system adopts digital and analog fusion design, can realize the camera tracking function, embedded DSP audio processing technology, 4-inch touch screen management and settings, easy to use and intuitive, cooperate with the AOIP network audio transmission module to achieve audio signal interconnection, and the module supports mainstream networks Audio transmission protocol. 2. The wireless radio frequency technology transmits audio and digital control signals, with high-fidelity sound quality, no compression, clear and transparent, and the wireless control signal is reliable and stable; 3. Support camera tracking function, can connect to the camera through RS485, RS232, etc., support VISCA, PELCO-D/P camera control protocol, and can independently connect a camera for camera tracking; 4. It has a video switch RS232 communication port, which can be connected to a high-definition video switcher or a high-definition matrix, and supports up to 8 cameras for camera linkage; 5. Built-in high-speed DSP processor, based on artificial intelligence self-learning algorithm developed adaptive feedback suppression (AFC) and automatic noise reduction technology (ANC), deep learning analysis of the feedback signal that causes howling, and quickly eliminate the cause of howling Repetitive signals, learning and analyzing environmental noise, background noise and current sound, etc., to remove useless noise 6. The host supports a variety of conference modes: such as first-in first-out, chairman priority mode, the number of open microphones supports 1-4, and the system can carry up to 128 microphones; 7. The directivity can be adjusted with the microphone, supporting 5 modes: omnidirectional, cardioid directivity, super cardioid directivity, sharp cardioid directivity, figure 8 directivity, etc.; 8. Extend AOIP network audio transmission to support mainstream. The refined and elegant 4-inch touch screen is used for conference host management and settings, and can display the following information at the same time: a. Speaking mode selection, speaking quantity limit function b. Radio frequency grouping and radio frequency signal strength display c. AFC adaptive feedback suppression is turned on and off, d. ANC automatic noise reduction on and off e. System volume adjustment f. System settings and status view, switch between Chinese and English 6. Network transmission protocol, realize audio signal interconnection and intercommunication

The network audio processor is a network audio processor with 64 digital inputs and 64 digital outputs. It adopts the industry-leading ADI DSP SHARC21489 chip, and the maximum operating frequency can reach 450MHz. Meet the audio processor and transmission needs of various places, such as meeting rooms, multi-function halls, conference center auditoriums, administrative centers, etc.

Single 12-inch line array bass (for use with L-205)

Features: The exquisite and minimal structural design highlights the modern atmosphere and conforms to ergonomics. Special electret capacitive dual microphone core design, clear and bright sound quality, high sensitivity; Support mainstream network audio protocols, use network cables to connect to the switch, and transmit audio in the network to realize signal interconnection and intercommunication; Using POE (Power over Ethernet) power supply and analog phantom power supply, digital and analog dual backup, the system is more stable. Provide standard balanced XLR interface to transmit analog audio: Provide standard RJ45 network interface to transmit digital audio: The entire expandable Dante system has 512 two-way audio channels; Original microphone adjustable directivity technology, supports 5 modes: omnidirectional, cardioid directivity, super cardioid directivity, sharp cardioid directivity, figure 8 directivity, etc. Equipped with 5 switch mode options: 1. Power-on mute mode, then press to speak; 2. Power-on speaking mode, and then press mute; 3. Long press the speaking mode to release the mute; 4. Long press the mute mode to release the speech; 5. , Voice control mode; Customizable remote control switch Anti-radio frequency and mobile phone interference; The base is equipped with damping rubber to effectively reduce the noise caused by external vibration to the microphone.

Features： A digital extender, when the conference system host has insufficient power supply or a long cable distance causes the signal to attenuate and cannot work normally, the use of the extender can achieve the function of power supply expansion and communication signal enhancement; Solve the problems of long-line transmission and signal attenuation, enable the system to carry more microphone units, and enhance the stability and reliability of the system.

The network audio processor is a network audio processor with 32 digital inputs and 32 digital outputs. It adopts the industry-leading ADI DSP SHARC21489 chip with a maximum operating frequency of 450MHz. The input and output modules of the DSP can be customized according to the actual situation. At the same time, it has independent AFC, AEC, ANS, AGC, gain sharing automatic mixing, threshold automatic mixing and other processing modules to meet the needs of audio processors and transmissions in various places. Such as meeting rooms, multi-function halls, conference center auditoriums, administrative centers, etc.

The LA-AM12D compact line array module with its own power amplifier has a high-energy 12-inch ultra-low frequency unit with continuous directional coverage. Designed for simple system construction, it can provide the best listening experience in the shortest time. At the same time, the entire series is fully integrated with DanteTM. Using the speaker as the system carrier, it fully integrates the functions of signal transmission, processing, power amplification and remote monitoring, abandoning a large number of physical devices such as power amplifiers and peripheral processing equipment, and realizes the system transmission network, processing IT, and control intelligence.

Features： The exquisite and minimal structural design highlights the modern atmosphere and conforms to ergonomics. Special electret capacitive dual microphone core design, clear and bright sound quality, high sensitivity; Support mainstream network audio protocols, use network cables to connect to the switch, and transmit audio in the network to realize signal interconnection and intercommunication; Use POE (Power over Ethernet) for power supply; The entire expandable Dante system has 512 two-way audio channels; Original microphone adjustable directivity technology, supports 5 modes: omnidirectional, cardioid directivity, super cardioid directivity, sharp cardioid directivity, figure 8 directivity, etc. Equipped with 5 switch mode options: 1. Power-on mute mode, then press to speak; 2. Power-on speaking mode, and then press mute; 3. Long press the speaking mode to release the mute; 4. Long press the mute mode to release the speech; 5. , Voice control mode; Customizable remote control switch Anti-radio frequency and mobile phone interference; The base is equipped with damping rubber to effectively reduce the noise caused by external vibration to the microphone.

Features： • Adopt all-digital conference technology, in line with IEC60914 international standard; • Exquisite and minimalist structure design, highlighting the modern atmosphere, accord with ergonomics; • Brand new dual microphone design, longer pickup distance and wider range; • Special electret capacitive single microphone core design, clear and bright sound quality, high sensitivity; • The exquisite and elegant 3.5-inch touch screen is used for the information interaction between the speaker and the conference manager, and the following information can be displayed at the same time: a. Speaker information and time b. Microphone directivity setting c. Sign in and observe the voting status d, microphone gain adjustment e. Information interaction between the speaker and the conference administrator f. System language setting and unit information display • All-digital audio technology, built-in high-performance CPU, faster processing speed, better sound quality; • Digital and analog dual backup function to ensure that the system is stable and reliable, and every important meeting is uninterrupted; • Ring-shaped hand-in-hand connection technology, a microphone failure or replacement will not affect the work of other extensions of the system, and a connection failure between the microphones will not affect the system work, thus making the system more reliable; • Support line "hot swap", microphone access system can be added at any time • The chairman unit has the priority function of full control of the conference order, and the connection position is not restricted; • The chairman unit can short press the function button in the application mode to allow the representative unit to turn on the microphone; • The chairman unit has two touch buttons, no mechanical button sound, long life, and waterproof function, one is to switch the microphone button, the other is the function button; • With the camera tracking host, after using the computer preset, the camera can be automatically tracked; • There are 4 speaking modes: normal mode, first-in first-out mode, free mode, application mode; • Two-color LED indicator, red when speaking; • The unit comes with a 1.8-meter dedicated 8-core cable for conferences, and a 1-meter analog backup audio cable (with a Deng Nong head); • Anti-cell phone interference microphone core, stable connection, durable and reliable; • 1 Ø 3.5 mm stereo headphone jack for connecting headphones; • The conference unit has a unique serial number, and the conference system can manually assign an ID to the conference unit.

The network audio processor is a network audio processor with 32 inputs (16 analog and 16 digital) and 32 outputs (16 analog and 16 digital), using the industry-leading ADI DSP SHARC21489 chip , The highest operating frequency can reach 450MHz. The input and output modules of the DSP can be customized according to the actual situation. At the same time, it has independent AFC, AEC, ANS, AGC, gain sharing automatic mixing, threshold automatic mixing and other processing modules to meet the needs of audio processors and transmissions in various places. Such as meeting rooms, multi-function halls, conference center auditoriums, administrative centers, etc.

Features： 1. It has high efficiency and high sound energy output, excellent sound quality, perfect protection function and good electromagnetic compatibility characteristics. 2. Array full-frequency sound column with network transmission and pure digital power amplifier. (Equipped with special independent speaker control software), adjust the direction and angle of direct sound (pre-set 0°, ±15°, ±45°, ±60°, bypass) 3. With DSP network active sound column, you can remotely perform EQ, various filter switching, delay, compression, group mixing and other operations on 8 groups of units on the PC side 4. It has complete protection functions (short circuit protection, over current protection, over and under protection, DC protection, power limit, temperature limit, long-term output power limit, clipping limiter). 5. The sound column uses Dante digital audio interfaces (2) and 220V power supply to drive the power amplifier module. It also has a XLR interface with one input and one output, which can be multiple cascaded, and is equipped with two control network ports and a USB interface for The computer adjusts the 8 units of the sound column. 6. The back panel has a display screen and physical buttons, which can switch the sound column input mode, preset effect mode, etc., device TP display mode, lock screen and other operations

Features： 1. Comes with 2 RJ45 interfaces, adopts digital audio transmission and control technology, and has a good sound quality guarantee; 2. Using a detachable microphone pole, simple operation and convenient product maintenance. 3. Condenser microphone with green ring indicator light, easy to distinguish speaking and waiting status 4. In the entire conference system, the chairman unit has priority to speak, and can mute/close the speech of any representative unit that is speaking, so that the chairman unit can effectively control the order of the meeting place 5. Good anti-GSM interference ability 6. With video tracking, sign-in, and voting functions.

Features： 1. Adopting all-digital conference technology, in line with IEC60914 international standards; exquisite and minimalist structure design, highlighting the modern atmosphere, in line with ergonomics; special electret capacitive dual microphone core design, clear sound quality, high sensitivity; 2. The self-developed technology of D-net IOT digital conference IOT system realizes five adjustable directional modes of pickup microphones: omnidirectional, cardioid directional, super-cardioid directional, sharp-heart directional, Figure- 8-pointing type; 3. The exquisite and elegant 3.5-inch touch screen is used for the information interaction between the speaker and the conference manager, and can display the following information at the same time: a. Speaker information and time b. Microphone directivity setting c. Sign in and observe the voting status d, microphone gain adjustment e. Information interaction between the speaker and the conference administrator f. System language setting and unit information display 4. Ring-shaped hand-in-hand connection technology, the failure or replacement of a microphone will not affect the work of other extensions of the system, and a connection failure between the microphones will not affect the system work, thus making the system more reliable; 5. Support line "hot swap", microphone access system can be added at any time 6. With the camera tracking host, after using the computer preset, the camera can be automatically tracked The 7.3.5-inch wall control touch screen is used for conference host management and settings, which is convenient and efficient, and can display the following information at the same time: a. Time-limited mode: The speech time limit can be set to 1-60 minutes, and the speech will be automatically closed when the time is up. After reaching the power-on quantity, when another representative unit wants to speak, it will automatically enter the request-to-speak registration queue. b. First-in-first-out mode: First-in-first-out speaking mode (factory preset position), after reaching the number of power-on, the speaking unit opened first is closed by the subsequent speaking unit. c. Application for speaking mode: the speaking of the representative unit needs to be approved by the chairman unit or the operator. In this mode, the chairman unit always keeps the normally open state. 8. Two-color LED indicator light, green when speaking; 9. The unit comes with a 1.8-meter conference dedicated 8-core cable, and a 1-meter analog backup audio cable (with a T-Nong head) 10. Anti-RF microphone core of mobile phone, stable connection, durable and reliable; 11.1 Ø 3.5 mm stereo headphone jack can be connected to headphones. The conference unit has a unique serial number, and the conference system can manually assign an ID to the conference unit.

The network audio processor is a network audio processor with 32 inputs (16 analog and 16 digital) and 24 outputs (8 analog and 16 digital), using the industry-leading ADI DSP SHARC21489, The highest operating frequency can reach 450MHz. The input and output modules of the DSP can be customized according to the actual situation. At the same time, it has independent AFC, AEC, ANS, AGC, gain sharing automatic mixing, threshold automatic mixing and other processing modules to meet the needs of audio processors and transmissions in various places. Such as meeting rooms, multi-function halls, conference center auditoriums, administrative centers, etc.

A network active speaker is an active full-range speaker that integrates network transmission, pure digital power amplifier and RS-232 control and monitoring. It has high efficiency and high sound energy output, excellent sound quality, perfect protection function and good electromagnetic compatibility characteristics. It has a backup analog input interface and a Dante network interface, which can transmit dual backups. It can be connected to the built-in Dante board through a network cable to realize network audio signal transmission. The IP address is automatically assigned through the router DHCP, and the signal is transmitted with the audio matrix with dante function in the local area network, and a set of all-digital network sound reinforcement system can be easily formed. It is suitable for classrooms in primary and middle schools, small and medium-sized meeting rooms, corridor broadcasting and other places.

Features： 1. Good anti-GSM interference ability; 2. Using a detachable microphone pole, simple operation and convenient product maintenance; 3. Condenser microphone with double color ring indicator light, easy to distinguish speaking and waiting status; 4. Comes with 2 RJ45 interfaces, adopts digital audio transmission and control technology, and has a good sound quality guarantee; 5. The chairman unit can initiate sign-in and voting operations. 6. The sound level of this unit can be individually adjusted on each unit to mute the sound. 7. In the entire conference system, the chairman unit has the priority to speak, and can mute/close the speech of any representative unit that is speaking, so that the chairman unit can effectively control the order of the meeting place.

Features： 1. This product uses a high-performance microcomputer processor as the core design of a new generation of products, equipped with a high-definition and sensitive 3.5-inch OLED touch screen. Adopting all-digital conference technology, conforming to IEC60914 international standard, professional, novel, simple appearance design, and comprehensively adopting the perfect combination of digital control technology, advanced audio processing technology and network technology, intelligent control, reaching the requirements of high-definition CD sound quality, which can be widely used Used in various occasions: large and small meeting rooms or multi-function halls, small and medium-sized performance occasions, hotels, conferences, public security, courts and other government departments. 2. The host computer and the computer can be connected through TC/IP or network access WiFi to realize wireless control mode, and the host can realize ID allocation address to realize distributed application management 3. With the camera tracking host, after using the computer preset, the camera can automatically track and support the preset panoramic position 4. The self-developed technology of D-net IOT digital conference IoT system realizes five adjustable modes of directional microphones: omnidirectional, cardioid directional, super-cardioid directional, sharp-heart directional, Figure- 8-pointing type; 5. The 3.5-inch wall-control touch screen or even a PC is used for conference host management and settings, which is convenient and efficient, and can display the following information at the same time: a. Time-limited mode: The speech time limit can be set to 1-60 minutes, and the speech will be automatically closed when the time is up. After reaching the power-on quantity, when another representative unit wants to speak, it will automatically enter the request-to-speak registration queue. b. First-in-first-out mode: First-in-first-out speaking mode (factory preset position), after reaching the number of power-on, the speaking unit opened first is closed by the subsequent speaking unit. c. Application for speaking mode: the speaking of the representative unit needs to be approved by the chairman unit or the operator. In this mode, the chairman unit always keeps the normally open state. d. First-in-first-out mode; you can choose 1/2/4/6 microphones to speak at the same time, and the chairman microphone and VIP microphone can be preset without restriction. e. Volume adjustment of main output f. Centralized microphone management, such as microphone pickup gain adjustment, forced switch, and speaker information registration g, can initiate voting and sign-in functions h. Interconnection with speaking microphones, such as tea, pen and paper, etc. i. Check the microphone line j. VIP unit can be set through software, and the switch of VIP unit is not limited by the number of conference units that can be opened at the same time and speaking mode 6. Built-in self-learning algorithm based on artificial intelligence has developed adaptive feedback suppression (AFC) and automatic noise reduction technology (ANC), deep learning analysis of feedback signals that cause howling, and elimination of ring-shaped hand-in-hand connection technology that causes howling. The failure or replacement of a microphone will not affect the work of other extensions in the system, support the line "hot swap", you can add microphones to the system at any time 7. With the camera tracking host, after using the computer preset, the camera can automatically track and support the preset panoramic position 8. Built-in real-time clock, perpetual calendar function, can display the current time on the conference host, conference terminal, convenient for participants to view 9.2 channels of audio external line input and 2 channels of audio line output, 1 channel of balanced output 10.4 channels of 8-core aviation connector can form 2 groups of hand-in-hand loop wiring to ensure a more stable system

Features: ●The high-quality pre-op amplifier guarantees the output sound quality and controls the output volume of each channel ●Advanced digital reverberation modulation function ●Twelve microphone input sockets. Independent phantom power supply for each channel, independent input volume adjustment, independent switch indicator ●The device itself provides a mixing channel, mixing input twelve microphones (each microphone can adjust the volume of the output to the mixing channel), while controlling the final output mixing volume ●Each input channel and mixing channel have an independent output, and the input channel and mixing channel can be monitored locally ●The equipment allows nearby installation, and the network transmits the audio of independent channels and mixed channels to the remote power amplifier or mixer ●With device superimposition function (when there are more than twelve microphones, two sets of this device can be superimposed and used) ●Twelve channels of microphones can be adjusted individually, which can also use various types and indicators of microphones to ensure that the microphone volume input and output in the system are balanced ●Only one audio equipment of the power amplifier, with this equipment can drive multiple, even dozens of microphones to work ●The panel displays the network status, which is convenient for fault diagnosis ●RS232/RS485 remote control interface reserved ●Only one network port, daisy chain connection is not allowed ●The network IP of the device can be set independently ●Microphone connection matching: phantom or non-phantom powered microphone ●Microphone connection: 12 XLR sockets

The network audio processing center is a network audio processor with 20 inputs (12 analog and 8 digital) and 20 outputs (12 analog and 8 digital), using the industry-leading ADI DSP SHARC21489 chip, The highest operating frequency can reach 450MHz. The input and output modules of the DSP can be customized according to the actual situation. At the same time, it has independent AFC, AEC, ANS, AGC, gain sharing automatic mixing, threshold automatic mixing and other processing modules to meet the needs of audio processors and transmissions in various places. Such as meeting rooms, multi-function halls, conference center auditoriums, administrative centers, etc.

A network active speaker is an active full-range speaker that integrates network transmission, pure digital power amplifier and RS-232 control and monitoring. It has high efficiency and high sound energy output, excellent sound quality, perfect protection function and good electromagnetic compatibility characteristics. It has a backup analog input interface and a Dante network interface, which can transmit dual backups. It can be connected to the built-in Dante board through a network cable to realize network audio signal transmission. The IP address is automatically assigned through the router DHCP, and the signal is transmitted with the audio matrix with dante function in the local area network, and a set of all-digital network sound reinforcement system can be easily formed. It is suitable for classrooms in primary and middle schools, small and medium-sized meeting rooms, corridor broadcasting and other places.

Features： 1. Equipped with 5 groups of RJ45 loopback signal acquisition interface, "ring hand in hand" connection, the system is more reliable 2. Conventional network cable (Cat5e or Cat6) connection between each unit is convenient and quick 3. Each group of lines can connect 30 units, a single machine can connect 150 units, and an expander can be added to connect more units 4. Support WiFi for all control functions of the central processor 5. Support Dante network transmission, and additionally support three-way LINE/MIC input Dante network, which can be set through software 6. Remote control and remote assistance can be carried out through the TCP/IP network interface 7. Support meeting functions: discussion, video tracking, voting, sign-in 8. Support system hot swap 9. Support RS232 central control control, and have two-way code sending function, realize seamless connection with intelligent central control system 10. Support external audio input and recording output port 11. Support access port for conference call 12. The system can be set to lock or release the function of the microphone operation, and each unit has an electronic volume adjustment function. 13. Multiple speaking modes: first in first out, last in first out, automatic mode, discussion mode, chairman mode 14. With voice control to turn on the microphone function and speech time limit function (optional 1-999 seconds) 15. Connect to the computer to simulate the scene layout of the on-site meeting, and you can click to turn on or off all the unit microphones at any time 16. The host adopts LCD operation interface (3.5 inches), which can switch various national languages and display perpetual calendar

Product Features： 1. A connection and distribution function between the host and microphone of the digital conference IoT system 2. Equipped with 4 RJ45 ports, 2-way distribution and 2-way connection; 3. Circular hand-in-hand design, equipped with 2 CAT6 super Category 6 wires; 4. One module has two microphone connections; 5. Any module sets the connection of the chairman microphone.